The one negative I do not (but is located on the Samsung software) that Navi Edition and music via the line input / Out - transfer cable to the car radio, telephone conversations, however, only through the speaker, even when the appropriate setting in the Auto mode menu of the phone (tested with Stock Android 4.1.2 Samsung SG3). Whether a future software update fixes this, is questionable. A test with CM10.1 (Android 4.2.2) takes place this weekend.
The phone will not budge, the holder with a very good and stable and rigid suction cup keeps the bomb on the disc, otherwise is a plastic disc with adhesive mechanism to make it similar to the dashboard to fix.
The holder has been tested in a mobile rocking chair (called Smart FourTwo), a BMW and a Mercedes Benz Sprinter, the display was always easy to read, there were hardly any vibration transmission and the locking screw with is very fine and precisely adjustable.
All in all a very good (and surprisingly affordable) Active holder.
The only drawback: The sliding mechanism to the terminal is a bit shaky and needed to avoid damage to the phone and the bracket with both hands.
Otherwise, recommended at any time, I will try it on the weekend with a now freshly installed CyanogenMod 10.
Edit: With CyanogenMod the audio output via USB can thus the rearward LineIn output not possible, even after adjusting USB output changes nothing.